Acta Phys. -Chim. Sin. ›› 2025, Vol. 41 ›› Issue (6): 100053.doi: 10.1016/j.actphy.2025.100053

• ARTICLE • Previous Articles     Next Articles

Hierarchical MoS2/Ti3C2Tx heterostructure with excellent photothermal conversion performance for solar-driven vapor generation

Kun Rong1, Cuilian Wen1,*(), Jiansen Wen1, Xiong Li1, Qiugang Liao1, Siqing Yan1, Chao Xu3, Xiaoliang Zhang2,*(), Baisheng Sa1,*(), Zhimei Sun2,*()   

  1. 1 Materials Genome Institute, School of Materials Science and Engineering, Fuzhou University, Fuzhou 350100, Fujian Province, China
    2 School of Materials Science and Engineering, Beihang University, Beijing 100191, China
    3 Xiamen Talentmats New Materials Science & Technology Co., Ltd., Xiamen 361015, Fujian Province, China
  • Received:2024-11-26 Revised:2025-01-07 Accepted:2025-01-21 Published:2025-04-19
  • Contact: Email: clwen@fzu.edu.cn (Cuilian Wen)xiaoliang.zhang@buaa.edu.cn (Xiaoliang Zhang)bssa@fzu.edu.cn (Baisheng Sa)zmsun@buaa.edu.cn (Zhimei Sun)
  • Supported by:
    the National Key Research and Development Program of China(2022YFB3807200); the National Natural Science Foundation of China(52332005); the Natural Science Foundation of Fujian Province(2024J01262)

Abstract:

Metallic 1T Molybdenum disulfide (1T-MoS2) exhibits enhanced full spectral light absorption and prominent electrical conductivity, making it ideal for photothermal applications in conjunction with Ti3C2Tx MXene. Despite the challenges in increasing the 1T-MoS2 proportion within MoS2/Ti3C2Tx heterostructures and the incomplete understanding of the mechanisms governing their formation and properties, herein, a combined theoretical and experimental framework has been established, suggesting that the metallic characteristics of Ti3C2Tx and 1T-MoS2 could significantly improve photothermal performance through strong interlayer interactions and efficient electron transport. The hierarchical MoS2/Ti3C2Tx heterostructure has been fabricated through a one-step hydrothermal synthesis method with enhanced 1T-MoS2 proportion, which achieves multilayered wrinkled architecture resulting from the in-situ growth of MoS2 on Ti3C2Tx nanosheets. Notably, a remarkable peak photoheating temperature of 107 ℃ under an 808 nm laser with an intensity of 0.5 W·cm−2 is realized, demonstrating its exceptional photothermal conversion capability. By incorporated into a polyvinylidene difluoride membrane, the MoS2/Ti3C2Tx heterostructure functions as an efficient self-floating solar-driven steam generator, reaching an evaporation rate of 1.79 kg·m−2·h−1 and an evaporation efficiency of 96.4% under one solar irradiance. This study proposes a versatile strategy for the MoS2/Ti3C2Tx heterostructure, offering the potential for sustainable solar-driven vapor generation technologies.

Key words: MXene, Molybdenum disulfide, Heterostructure, Photothermal conversion, Solar-driven vapor generation